Liu Y, Gao Y, Li D, Fleming J, Li H, Bi L. Crystal structure of Rv3899c(184-410), a hypothetical protein from Mycobacterium tuberculosis.
Acta Crystallogr F Struct Biol Commun 2016;
72:642-5. [PMID:
27487929 PMCID:
PMC4973306 DOI:
10.1107/s2053230x16010943]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 07/06/2016] [Indexed: 11/10/2022] Open
Abstract
Rv3899c is a hypothetical protein from Mycobacterium tuberculosis which is conserved across mycobacteria. It is predicted to be secreted and has been found in culture filtrates. It has been proposed as a potential vaccine candidate; however, its biological function is unknown. Here, the global structure of Rv3899c(184-410), a fragment of Rv3899c, is reported. The structure resembles the shell of a sea snail, and its N- and C-termini form two relatively independent compact domains: an α/β/α sandwich folding domain and an α-helix bundle domain. There are no reported protein structures for any Rv3899c homologues; this structure provides the first structural glimpse of a new protein family consisting of Rv3899c and its homologues.
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